VOA慢速英语:对于美国顶尖的病毒专家来说 信仰和科学共存

harmony – n. a pleasing combination or arrangement of different things

faith – n. religious belief

approach – v. to get near or to undertake

challenge – n. a difficult task or problem

persona – n. the image or personality that a person presents to other people

motivate – v. to give someone a reason for doing something

reliable – adj. able to be trusted to do or provide what is needed